Printing device.



J. H. RIETZKE.

PRINTING DEVICE. APPLICATION FILED NOV. 30, 1909.

Patented May 5, 1914.

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J. H. RIETZKE.

PRINTING DEVICE. I APPLICATION FILED NOV. 30, 1909.

Patented May 5; 1914.

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(i y eiziw J. H., RIETZKE.

PRINTING DEVICE. APPLICATION FILED NOV. 30, 1909. 1,095,522, Patented May 5, 1914.

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aktomu J. H. RIETZKE.

PRINTING DEVICE.

Patented May 5, 1914.

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JOHN H. BIETZKE, OF CHICAGO, ILLINOIS.

PRINTING DEVICE.

To all 2071 0111 it may concern Be it known that I, JOHN H. RIETZKE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Printing Devices, of which the following is a specification.

This invention relates to improvements in printing devices and embraces a device whereby spaces of paper carrying printed matter can be filled after the printed matter has been fixed thereon.

One of the objects of the invention is the construction of a cylinder having means formed thereon adapted to receive a series of form holding means for holding the same in locked position, the cylinder being provided with improved means whereby the form holder can be fixedly held in place.

With the above and other objects in view the invention relates to certain combinations, constructions, and arrangements of parts, clearly illustrated in the accompanying drawings, in which,

Figure 1 is a side elevation of the cylinder which carries the form holding sections, Fig. 2 is an end view thereof, Fig. 3 is a top plan view of one of the form holding sections, Fig. 3 is a detail of one of the shoulders of a form holder, Fig. 4: is a detail sectional view taken through the cylinder and the printing form holder, Fig. 5 is a detail sectional view of one of the sections of the form holding sections, illustrating the looking means, Fig. 6 is an end view of the cylinder with one of the form holding sections secured thereto, Fig. 7 is a detail plan view showing the locking means for holding the form holding sections in place on the cylinder, Fig. 8 is a detail sectional view of another locking device for holding the print ing form holders in place, Fig. 9 is a detail plan view of a part of the cylinder, Fig. 10 is a detail sectional view of a portion of the cylinder showing the means used for effecting a tight connection between the sections of the printing form, Fig. 11 is a view showing a modified construction of the cylinder.

Referring to the accompanying drawings illustrating the invention 1 denotes a cylinder which is provided on one of its ends with a head 2, which is suitably secured thereto. The body of the cylinder 1 is formed with longitudinally extending grooves or slots 3, which are provided with olfsets 4 and 5,

Specification of Letters Patent.

Application filed November 30, 1909.

Patented May 5, 1914.

Serial No. 530,582.

suitably spaced apart from each other. The cylinder is formed hollow throughout so as to be capable of being mounted on a shaft of a printing press. The head 2 of the cylinder 1s provided with a circumferential groove 6 adapted to receive the projecting end 7 of the printing form holder section 8, which is provided with an upstanding shoulder 9, which is formed with an integral stop 10, 'on its upper or outer end. The body of the form holder is formed arc-shaped in construction with the exception of the out-er edges, which are provided with integral shoulders 11 and 12, provided thereon to prevent the outward movement of the type metal. The type metal is formed into lined type, such as is produced by the linotype, but wedge-shape so as to fit on the form holding sections 8, and said metal is held in place thereon by means of a clamping device located on the form holder 8. This device consists of a plate 18 having an out standing shoulder 14, which is provided on its outer edge with a projecting stop 15, disposed in alinement with the stop 10. The plate 13 is held on the form holder 8 by means of a clamping bolt 16 which extends into the form holder 8 and carries a cam 17, adapted to hold the shoulder 14 against the type metal. In order to provide an additional locking means for the outer end of the form holder 8 the cylinder 1 is cut-away at 18 and a spring 19 is disposed therein. This spring is adapted to engage the slot 18 in the depending flanges 19 The cam 17 is prevented from rotating or moving by a locking pawl 20, which works against a notched edge of said cam and is held toward said cam by a spring disposed in a box 21. The plate 13 is cut-away at 22 to provide room for the action of the cam 17.

The form holding sections 8 are provided with lugs or projections 23, which are formed with beveled sides, whereby said forms can be locked on the cylinder 1 through the medium of the slots 3, which are arranged to snugly receive the lugs. In order to hold the form holders 8 from sliding rearwardly from the cylinder 1 said cylinder is provided with pins 24, which are normally held by springs 25, disposed in boxings 26 of the cylinder 1. The pins 24: are withdrawn from engagement with the form holding sections 8 by means of levers 27, which are pivoted to said pins and to the cylinder 1. The form holding sections 8 are provided with flanges 19 which are ongaged. by the springs 19, which operate to hold said sections against the cylinder 1. The levers 27 project outwardly of the cylinder 1 and the locking means described for holding the form holding sections 8 in place are duplicated for each section. To supplement the locking means latch arms 28 are prr 'ided on the cylinder 1, which arms engage with the form holding sections 8 and with the levers 2?, which are each provided with lugs 29 adapted to hold the outer ends of the latch arms when the latch arms are brought into engagement with said levers. In this manner the two locking devices can be operated simultaneously. Should one of the locking devices fail to hold the form holding sections the other will doubtless work, while the action of one is not dependent on the other. By means of the enlarged portions at and 5 of the cylinder slots it is not necessary to slide the form holding sections all the way across the cylinder, and sections may be held in place by dropping the lugs in said enlargements and then sliding the same a short distance.

By means of the improved mechanism a complete form carrying type metal can be arranged and mounted on a press for printing purposes in a very short time and all blank spaces of a partly completed sheet can be filled in with satisfactory results.

Having described my invention I claim and desire to secure by Letters Patent 1. In a printing device, a cylinder having slots therein for the reception of form hold ing sect-ions, form holding sections having lugs adapted to be locked in the slots, each of said form holding sections comprising a curved portion having a shoulder, a plate having a. shoulder slidable on the curved portion, a cam carried by the last portion adapted to hold the plate toward the shoulder of said curved portion when a form is arranged on the form holding section, said I cam having a notched edge and a spring operated lock for engaging the notches in said cam.

2. In a printing device, a cylinder adapted to receive a. sectional form holding member, a pin slidable on the cylinder, a lever pivoted to said cylinder and said pin, a spring adapted to hold the pin away from the cylinder, a. sectional printing form holding member removably secured on the cylinder, said section being engaged by the pin, a plate slidable on the sectional tli'orm holding member, and a cam locking device adapted to hold the plate in fixed position on the form holding member.

In a printing device, a cylinder adapted to receive a form holding member made in sections, form holding sections secured on the cylinder, a plate movable on each of the form holding sections, a clamping bolt carried by each form holdin section, and a locking cam device connected with the bolt adapted to hold the plate in fixed position.

a In a printing device,a cylinder having slots therc'n for the reception of form holding sections. form holding sections having lugs adapted to be secured in the slots. pins on the cylinder engaging each section, levers carried by the cylinder adapted to operate the pins, and latch arms secured to the cylinder adapted to engage the form holding sections.

In a printing device, a cylinder, having slots therein, form holding sections having lugs adapted to fit in said slots, a plate slidable on each form holding section, a. bolt secured to each term holder section projecting through the plate, a cam on the bolt engaging the plate, a pawl on the plate engaging the cam, and a. spring adapted to hold the pawl against the cam.

In testimony whereof I ai'iiX my signature in presence of two witnesses.

JOHN H. RIETZKE.

li itnesses CHRIS E. Pn'rnnsnn, STEVEN L. CLnMENs.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

